The Taoiseach (Irish Prime Minister), Enda Kenny, has called Theresa May to express his concern over a possible deal between her party and the DUP.
He sought assurances that "nothing should happen to put the Good Friday Agreement at risk".
Could the DUP's new found "power" unsettle the power balance in Northern Ireland and risk the peace process?
As long as both sides (national and unionist) were equal in Northern Ireland, this was the guarantor of the peace process, but now that the DUP has been elevated to their new position as kingmakers in the UK government, could this awaken nationalist and ultimately dissident stirrings?
Lets not forget, the Northern Ireland government is still suspended since collapse over the DUP's handling of money. As part of the Good Friday Agreement (GFA), Northern Ireland is always governed by a coalition government made up of both sides of the divide there. But now the DUP has their new status, they might decide to unravel the GFA too, something they were never keen on to begin with.